Place to rest as son goes back for food (4)
I believe the answer is:
eats
'for food' is the definition.
(eats can mean food)
'place to rest as son goes back' is the wordplay.
I cannot quite see how this works, but
'son' could be 's' (genealogical abbreviation for son) and 's' is found within the answer.
The remaining letters 'eat' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for eats that I've seen before include "Commonly, they eliminate" , "Ingests" , "Gets tucked into the cake" , "Food (informal)" , "Common grub" .)